import java.util.Scanner;
public class Sixth {
	public static void main(String[] args) {
	double a=getnumber();
	System.out.println(a);
	}
	public static double getnumber() {
	Scanner SC = new Scanner(System.in);
	System.out.println("Enter the value of X:");
	double x = SC.nextDouble();
	System.out.println("Enter the value of Y:");
	double y = SC.nextDouble();
	System.out.println("Enter the value of Z");
	double z = SC.nextDouble();
	double result= Math.pow(x, 3) + Math.pow(y, 3) + Math.pow(z, 3);
	return result;
	}
}